HKS Max IV SP Coilovers - Mazda RX-7 FD3S

Current In Stock Wheels:

Gift Wrapping:

Quantity:

Quantity:

New
In stock

Product Description

The sport model to have a comfortable drive even in the winding road.

This "MAX IV SP" is the ultimate sport model for such a high grip radial tire. It will transfer the feelings straight to driver all kinds of information such as tire, road surface condition and traction. It's a perfect street sport model suspension for people who love to drive fast but still want comfort.

Application

Specification

Engine

13B-REW

Model Year

91/12 - 02/08

Remarks

FRONT

REAR

Damping force adjustment

30 steps

30 steps

Base valve

-

-

Height adjustable lower bracket

○

○

Upper mount

Spherical bearing

Spherical bearing

Inverted/Normal type

Normal

Normal

Damper/Spring layout

Coilover

Coilover

Spring rate change at factory

Possible

Possible

Damping force adjustment with wire

-

-

Helper spring(Spring rate N/mm)

-

○ ( 19.8 )

Ride Height

mm

Factory *2

Test data

Adjustable rangeHigh - Low *3

Drivable rangeHigh - Low *4

FRONT

Ride height *1

636

←

665 ～ 598

665 ～ 628

Against stock

-29

←

0 ～ -67

0 ～ -37

REAR

Ride height *1

642

←

677 ～ 589

677 ～ 589

Against stock

-35

←

0 ～ -88

0 ～ -88

*1. Height from road surface to fender arch.*2. Height at factory is the data tested at HKS with the setting of Full Kit. (HKS' recommended setting.)*3. Adjustable range (However, the lowest value may not be road legal.Even within the adjustable range, car body, arm etc. may contact. In such case, it will be hard to drive.Damper oil leakage or any other problems caused by low ride height setting from the factory setting will void the warranty of the product.)*4. Drivable range that there is no contact of car body or arms etc. (However, change of tire/wheel size may cause a problem.)Caution). Actual data depends on each vehicle.

Kit information

Spring of Full Kit

F

R

Spring rate N/mm(kgf/mm)

157 ( 16 )

157 ( 16 )

Free height (mm)

200

170

Spring type

Straight

Straight

Recommended range to change spring rate N/mm(kgf/mm)

-20 ( 2 )

-20 ( 2 )

Specification of damper

F

R

Damping force (Rebound/Damping)N*

3109 / 598

1893 / 392

Default position of dial

15

15

Remaining damper stroke (Rebound/Damping)mm

28 / 57

50 / 50

* The value of the damping force is at piston speed of 0.1m/sec.

Setting data

F

R

Default

Test

Drivable limitHigh *

Drivable limitLow *

Default

Test

Drivable limitHigh *

Drivable limitLow *

Length ofcase (mm)

373

←

392

370

301

←

323

283

SpringSet length(mm)

198

←

198

200

223

←

220

243

Length to ride hightadjuster (mm)

47

←

66

42

45

←

70

7

Lever ratio

1.49

1.40

* Refer to the above explanation *3 of ride height information for drivable high and low limitations.

Manufacturer Insight

HKS was founded in 1973 by two talented young engineers in Japan and has since become a world leader when it comes to high end engine tuning, international racing teams, drifting, and turbo supplies. HKS has been an industry leader in aftermarket parts for 35+ years in turbo products, drag racing equipment, drifting products, and more. HKS is known for its great performance, reliability, and quality.